Delambre (Jean Baptiste Joseph), French astronomer, b. Amiens, 19 Sept. 1749, studied under Lalande and became, like his master, an Atheist. His Tables of the Orbit of Uranus were crowned by the Academy, 1790. In 1807 he succeeded Lalande as Professor of Astronomy at the Collége de France. He is the author of a History of Astronomy in five volumes, and of a number of astronomical tables and other scientific works He was appointed perpetual secretary of the Academy of Sciences. Died 19 Aug. 1822, and was buried at Père la Chaise. Cuvier pronouncing a discourse over his grave. De la Ramee. See Ramée. Delboeuf (Joseph Remi Léopold), Belgian writer, b. Liège, 30 Sept. 1831; is Professor at the University of Liège, and has written Psychology as a Natural Science, its Present and its Future; Application of the Experimental Method to the Phenomena of the Soul, '73, and other works. In his Philosophical Prolegomena to Geometry he suggests that even mathematical axioms may have an empirical origin. Delbos (Léon), linguist, b. 20 Sept. 1849 of Spanish father and Scotch mother. Educated in Paris, Lycée Charlemagne. Is an M.A. of Paris and officier d'Académie. Speaks many languages, and is a good Arabic and Sanskrit scholar. Has travelled widely and served in the Franco-German War. Besides many educational works, M. Delbos has written L'Athée, the Atheist, a Freethought romance '79, and in English The Faith in Jesus not a New Faith, '85. He has contributed to the Agnostic Annual, and is a decided Agnostic. Delepierre (Joseph Octave), Belgian bibliophile, b. Bruges, 12 March, 1802. Was for thirty-five years secretary of Legation to England. His daughter married N. Truebner, who published his work L'Enfer, 1876, and many other bibliographical studies. Died London, 18 Aug. 1879. Delescluze (Louis Charles), French journalist and revolutionary, b. Dreux, 2 Oct. 1809, was arrested in '34 for sedition. Implicated in a plot in '35, he took refuge in Belgium. In '48 he issued at Paris La Revolution Démocratique et Sociale, but was soon again in prison. He was banished, came to England with Ledru Rollin, but returning to France in '53 was arrested. In '68 he published the Réveil, for which he was again fined and sentenced to prison for ten years. In '59 he was amnestied and imprisoned. He became head of the Commune Committee of Public Safety, and died at the barricade, 25 May, 1871. Deleyre (Alexandre), French writer, b. Porbats, near Bordeaux, 6 Jan. 1726. Early in life he entered the order of Jesuits, but changed his faith and became the friend of Rousseau and Diderot. He contributed to the Encyclopédie, notably the article "Fanatisme," and published an analysis of Bacon and works on the genius of Montesquieu and Saint Evremond, and a History of Voyages. He embraced the Revolution with ardor, was made deputy to the Convention, and in 1795 was made member of the Institute. Died at Paris, 27 March, 1797. Delisle de Sales. See Isoard Delisle (J. B. C.)